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Ted Yu commented on HBASE-18084:
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bq. the cleaning time is way more long than getting space and sorting.
If the initial batch contains large directory, cleaning such directory already provides gain
compared with current patch since the cleaning would be deemed important considering the outcome
of the sorting.
> Improve CleanerChore to clean from directory which consumes more disk space
> ---------------------------------------------------------------------------
>
> Key: HBASE-18084
> URL: https://issues.apache.org/jira/browse/HBASE-18084
> Project: HBase
> Issue Type: Bug
> Reporter: Yu Li
> Assignee: Yu Li
> Attachments: HBASE-18084.patch, HBASE-18084.v2.patch
>
>
> Currently CleanerChore cleans the directory in dictionary order, rather than from the
directory with largest space usage. And when data abnormally accumulated to some huge volume
in archive directory, the cleaning speed might not be enough.
> This proposal is another improvement working together with HBASE-18083 to resolve our
online issue (archive dir consumed more than 1.8PB SSD space)
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